TWI637559B - Electronic device and antenna structure thereof - Google Patents

Abstract

An antenna structure includes a conductive housing and a feed element. The electrically conductive housing includes a slotted aperture. The feed element includes a substrate, a ground portion, a short circuit portion, and first and second feed portions. The grounding portion and the short-circuit portion are connected to the conductive housing. The first feed portion has a feed point and is connected to the conductive housing through the short circuit portion. The first and second orthographic projections of the conductive housing are located in the slotted holes, and the front projections of the grounding portion and the shorting portion on the conductive housing are located on opposite sides of the slotted hole. The first path formed by the antenna structure through the slotted hole operates in the first frequency band and operates in the second frequency band through the second path formed by the first and second feedthrough portions.

Description

Electronic device and antenna structure thereof

The present invention relates to an electronic device and its antenna structure, and more particularly to an electronic device including an electrically conductive housing having a slotted hole and an antenna structure thereof.

In recent years, most notebook computers have a narrow bezel design and a metal-conducting conductive casing to emphasize the uniqueness of the product and attract consumers' attention. Due to the design requirements of the narrow bezel, the antenna structure in the notebook computer is mostly designed on the plastic rotating shaft below the display panel. In addition, the signal bus of the display panel also spans the plastic rotating shaft to respectively connect the electronic components located in the two bodies of the notebook computer. However, in order to reduce the influence of the signal bus on the antenna, the antenna structure disposed in the plastic shaft often has to be far away from the signal bus, thereby occupying a large configuration space in the notebook. In addition, the conductive housing of the notebook computer often affects the radiation characteristics of the antenna structure. Therefore, how to save the configuration space of the antenna structure and improve the radiation characteristics of the antenna structure under the design requirements of the narrow frame and the conductive shell of the notebook computer has become an important subject of the antenna design of the notebook computer.

The invention provides an electronic device and an antenna structure thereof, which can save the configuration space of the antenna structure and help to improve the radiation characteristics of the antenna structure.

The antenna structure of the present invention includes a conductive housing and a feed element. The electrically conductive housing includes a slotted aperture. The feed element includes a substrate, a ground portion, a short circuit portion, a first feed portion and a second feed portion. The substrate includes opposing first and second surfaces, and the second surface faces the electrically conductive housing. The grounding portion and the short-circuit portion are electrically connected to the conductive housing, respectively, and the orthogonal projections of the grounding portion and the short-circuit portion on the conductive housing are respectively located on opposite sides of the slotted hole. The first feed portion is disposed on the first surface and has a feed point. The first feeding portion is electrically connected to the conductive housing through the short-circuit portion. The second feeding portion is disposed on the first surface and electrically connected to the first feeding portion. The second feeding portion is spaced apart from the ground portion by a first coupling pitch. The orthographic projection of the first feeding portion and the second feeding portion in the conductive housing is located in the slotted hole. The first and second feeding portions excite the antenna structure, and the first path formed by the antenna structure through the slotted hole operates in the first frequency band, and the second path formed by the first feeding portion and the second feeding portion operates in the second path Second frequency band.

The electronic device of the present invention comprises a rotating shaft, a first body, a second body and a feeding element. The first body and the second body are relatively rotated through the rotating shaft. The conductive housing in the first body includes a slotted hole and a corner of the adjacent rotating shaft, and the slotted hole is adjacent to the corner. The feeding element and the slotted hole form an antenna structure, and the feeding element includes a substrate, a grounding portion, a shorting portion, a first feeding portion and a second feeding portion. The substrate includes opposing first and second surfaces, and the second surface faces the electrically conductive housing. The grounding portion and the short-circuit portion are electrically connected to the conductive housing, respectively, and the orthogonal projections of the grounding portion and the short-circuit portion on the conductive housing are respectively located on opposite sides of the slotted hole. The first feed portion is disposed on the first surface and has a feed point. The first feeding portion is electrically connected to the conductive housing through the short-circuit portion. The second feeding portion is disposed on the first surface and electrically connected to the first feeding portion. The second feeding portion is spaced apart from the ground portion by a first coupling pitch. The orthographic projection of the first feeding portion and the second feeding portion in the conductive housing is located in the slotted hole. The first feeding portion and the second feeding portion excite the antenna structure, and the first path formed by the antenna structure through the slotted hole operates in the first frequency band, and the second path formed by the first and second feeding portions is operated in the first path. Second frequency band.

Based on the above, the present invention utilizes the slotted holes of the conductive housing and the feed elements to form the antenna structure. Thereby, the configuration space occupied by the antenna structure in the electronic device can be reduced, and the radiation characteristics of the antenna structure can be improved. In addition, the slotted hole is adjacent to a corner of the conductive housing adjacent to the rotating shaft, that is, the slotted hole is disposed on a side above the rotating shaft. Thereby, the influence of the signal busbar of the display panel on the antenna structure can be reduced, thereby further improving the radiation characteristics of the antenna structure.

The above described features and advantages of the invention will be apparent from the following description.

1 is a schematic diagram of an electronic device in accordance with an embodiment of the present invention. As shown in FIG. 1 , the electronic device 100 can be, for example, a notebook computer, and the electronic device 100 includes a first body 110 , a second body 120 , and a rotating shaft 130 . The rotating shaft 130 is disposed between the first body 110 and the second body 120, and the first body 110 and the second body 120 are relatively rotatable through the rotating shaft 130. In addition, the first body 110 includes a conductive housing 111 and a display panel 112, and for purposes of illustration, FIG. 1 does not depict a conductive bezel that surrounds the display panel 112. The second body 120 includes a conductive housing 121 and a conductive housing 122, and the electronic device 100 further includes a keyboard (not shown) disposed on the conductive housing 121.

Further, the conductive housing 111 includes an open slot 141 and a slotted hole 142. In addition, the slotted hole 141 and the slotted hole 142 can respectively form an antenna structure with a feed element in the electronic device 100. In other words, the electronic device 100 can form the two antenna structures 151 and 152 by using the two slotted holes 141 and 142. For purposes of illustration, FIG. 1 illustrates the location of the two antenna structures 151 and 152 using only dashed lines. In another embodiment, only a single slotted hole 141 or 142 may be disposed on the conductive housing 111 and thereby form a single antenna structure 151 or 152.

It should be noted that since the conductive housing 111 in the electronic device 100 is part of the two antenna structures 151 and 152, the configuration space occupied by the two antenna structures 151 and 152 in the electronic device 100 can be reduced. In addition, the effects of the conductive housings (eg, the conductive housings 111, 121, and 122) in the electronic device 100 on the two antenna structures 151 and 152 can be reduced, thereby improving the radiation characteristics of the two antenna structures 151 and 152.

In an overall configuration, the conductive housing 111 further includes two corners 161 and 162 adjacent to the rotating shaft 130, and the two slotted holes 141 and 142 are respectively adjacent to the two corners 161 and 162 of the conductive housing 111. In other words, the two slotted holes 141 and 142 are disposed on both sides above the rotating shaft 130, that is, the two antenna structures 151 and 152 are disposed on both sides above the rotating shaft 130. Therefore, the two antenna structures formed by the two slotted holes 141 and 142 are affected by the signal busbar of the display panel 112, and can be significantly reduced, so that the two antenna structures 151 and 152 can be further improved. Radiation characteristics.

In addition, the two antenna structures 151 and 152 located on the upper sides of the rotating shaft 130 are also adjacent to the electronic components in the second body 120 (for example, WiFi wireless) compared to the existing antenna structure disposed above the display panel 112. The transceiver of the transceiver module card is referred to as a transceiver as described below. Thereby, the transmission line (for example, the coaxial cable) connecting the two antenna structures 151 and 152 to the transceiver can be shortened, so that the influence of the power loss of the transmission line on the antenna structure can be reduced. Moreover, the orthographic projection of the display panel 112 on the conductive housing 111 and the two slotted holes 141 and 142 on the conductive housing 111 do not overlap each other. Thereby, the influence of the display panel 112 on the antenna structure can be reduced, so that the radiation characteristics of the line structure can be further improved.

In order to make the present invention more familiar to those skilled in the art, an antenna structure 151 formed by the slotted holes 141 of the conductive housing 111 will be listed below. In particular, Figure 2 is a schematic illustration of an antenna structure in accordance with an embodiment of the present invention. As shown in FIG. 2 , the antenna structure 151 includes a conductive housing 111 and a feeding component 200 , and the feeding component 200 includes a substrate 210 , a first feeding portion 220 , a second feeding portion 230 , a third feeding portion 240 , and a ground portion 250 . The short circuit portion 260 and the coaxial cable 270. The substrate 210 includes opposing first and second surfaces 211 and 212 , and the second surface 212 of the substrate 210 faces the conductive housing 111 . That is, the second surface 212 of the substrate 210 is attached to the conductive housing 111.

The first to third feeding portions 220 to 240 are disposed on the first surface 211 of the substrate 210, and the first to third feeding portions 220 to 240 are located between the ground portion 250 and the short-circuit portion 260. In addition, the third feeding portion 240 , the first feeding portion 220 and the second feeding portion 230 are sequentially arranged along the +X axis direction, that is, sequentially along an edge 251 of the ground portion 250 . A portion of the ground portion 250 is disposed on the first surface 211 of the substrate 210. In addition, the grounding portion 250 extends in the -Y-axis direction above the conductive housing 111, and the ground portion 250 located above the conductive housing 111 is electrically connected to the conductive housing 111. A portion of the shorting portion 260 is disposed on the first surface 211 of the substrate 210. In addition, the short-circuit portion 260 extends above the conductive housing 111 in the +Y-axis direction, and the short-circuit portion 260 located above the conductive housing 111 is electrically connected to the conductive housing 111.

FIG. 3 is a schematic view showing the projection of the antenna structure of the embodiment of FIG. 2, and FIG. 3 does not show the substrate 210 of FIG. 2 for convenience of description. Referring to FIG. 2 and FIG. 3 simultaneously, the first feeding portion 220 has a feeding point FP2 and is electrically connected to the conductive housing 111 through the short-circuit portion 260. One end of the second feeding portion 230 is electrically connected to the first feeding portion 220, and the other end of the second feeding portion 230 is an open end. One end of the third feeding portion 240 is electrically connected to the first feeding portion 220, and the other end of the third feeding portion 240 is an open end. In addition, the second feeding portion 230 is separated from the edge 251 of the ground portion 250 by a first coupling pitch D31, and the third feeding portion 240 is spaced apart from the edge 251 of the ground portion 250 by a second coupling pitch D32.

As shown in FIG. 3, in the overall configuration, the orthographic projections of the first to third feeding portions 220-240 in the conductive housing 111 are located in the slotted holes 141 of the conductive housing 111. That is, the orthographic projections of the first to third feeding portions 220 to 240 on the conductive housing 111 and the slotted holes 141 overlap each other. The orthographic projections of the grounding portion 250 and the shorting portion 260 on the conductive housing 111 are respectively located on opposite sides of the slotted hole 141 of the conductive housing 111. In other words, the first to third feeding portions 220 to 240 are floating above the slotted hole 141 through the substrate 210. In an embodiment, the substrate 210 may have a size of 20 mm × 8 mm × 0.4 mm. Further, the thickness of the substrate 210 is preferably less than 1 millimeter (mm) to thereby enhance the coupling mechanism between the first to third feeding portions 220 to 240 and the slit holes 141.

In operation, the feed point FP2 of the first feeding portion 220 can be electrically connected to the transceiver in the electronic device 100 through the coaxial cable 270. The feed point FP2 is electrically connected to the inner conductor of the coaxial cable 270, and the grounding portion 250 is electrically connected to the outer conductor of the coaxial cable 270. Thereby, the feed signal from the transceiver can be transmitted to the first to third feed portions 220-240 through the coaxial cable 270. Further, the first to third feeding portions 220 to 240 may be used to excite the antenna structure 151, thereby causing the antenna structure 151 to operate in the first to third frequency bands.

In particular, Figure 4 is a schematic illustration of a slotted aperture in accordance with an embodiment of the present invention. As shown in FIG. 4, a first path 410 may be formed around the slotted hole 141. In addition, under the excitation of the first feeding portion 220, the antenna structure 151 can generate a first resonant mode through the first path 410, and can be operated in the first frequency band. The length of the first path 410, that is, the circumference of the slotted hole 141 is about 1/4 wavelength of the lowest frequency of the first frequency band. In other words, those skilled in the art can adjust the shape or/and size of the slotted holes 141 as needed to adjust the frequency of the first frequency band.

For example, as shown in FIG. 4, the length D41 and the width D42 of the slotted hole 141 may be 19 mm and 11 mm, respectively. The width D43 of the opening of the slotted hole 141 may be 3 mm, and the width D44 of the bottom of the slotted hole 141 may be 5 mm. In the present embodiment, the slotted hole 141 includes two bends to form a zigzag slot. Further, the distance D45 from the opening of the slotted hole 141 to the first bend is 4 mm. Thereby, the frequency range of the first frequency band covered by the antenna structure 151 can be, for example, 2.4 GHz to 2.5 GHz. Further, in an embodiment, the slotted holes 141 on the conductive housing 111 may be implemented using an insert modeling technique, and the appearance of the conductive housing 111 may be modified by a spray coating technique.

In addition, as shown in FIG. 1, since the distance D45 of the opening of the slotted hole 141 to the first bend is 4 mm, the width of the conductive frame surrounding the display panel 112 may also be 4 mm. Thereby, the design requirements of the narrow bezel of the electronic device 100 can be met. Furthermore, as shown in FIGS. 1 and 4, the edges 420 and 430 of the conductive housing 111 can be used to form the corner 161, and the distance D46 between the slotted hole 141 and the edge 430 of the conductive housing 111 can be 15 mm. Thereby, it will help to enhance the design of the electronic device 100.

With continued reference to FIG. 3 , the first feed portion 220 and the second feed portion 230 can be used to form the second path 310 . In addition, under the excitation of the first feeding portion 220 and the second feeding portion 230, the antenna structure 151 can generate the second resonant mode through the second path 310, and can be operated in the second frequency band. The second path 310 extends from the feed point FP2 to the open end of the second feed unit 230, and the length of the second path 310 is about 1/4 wavelength of the lowest frequency of the second frequency band. In other words, one of ordinary skill in the art can adjust the shape or/and size of the second feed portion 230 as needed to adjust the frequency of the second frequency band. For example, the second feed portion 230 of the present embodiment includes a plurality of bends. In another embodiment, the shape of the second feeding portion 230 may also be a rectangle.

On the other hand, the first feed portion 220 and the third feed portion 240 may be used to form the third path 320. In addition, under the excitation of the first feeding portion 220 and the third feeding portion 240, the antenna structure 151 can generate a third resonance mode through the third path 320, and can be operated in the third frequency band. The third path 320 extends from the feed point FP2 to the open end of the third feed unit 240, and the length of the third path 320 is 1/4 wavelength of the lowest frequency of the third frequency band. In other words, one of ordinary skill in the art can adjust the shape or/and size of the third feed portion 240 as needed to adjust the frequency of the third frequency band. For example, the third feed portion 240 of the present embodiment includes a groove. In another embodiment, the shape of the third feeding portion 240 may also be a rectangle.

It is worth mentioning that the width D43 of the open end of the slotted hole 141 and the width of the first feeding portion 220 can be used to adjust the impedance matching of the antenna structure 151 in the first frequency band. The first coupling pitch D31 and the second coupling pitch D32 are respectively used to adjust the impedance matching of the antenna structure 151 in the second frequency band and the third frequency band. In an embodiment, the center frequency of the second frequency band is greater than the center frequency of the third frequency band, and the first coupling pitch D31 is smaller than the second coupling pitch D32.

For example, the frequency range of the second frequency band may be, for example, 5.7 GHz to 5.875 GHz, and the frequency range of the third frequency band may be, for example, 5.15 GHz to 5.7 GHz. The first coupling pitch D31 may be, for example, 0.5 mm, and the second coupling pitch D32 may be, for example, 1 mm. In addition, a person skilled in the art can selectively remove the second feed portion 230 or the third feed portion 240 according to design requirements, so that the antenna structure 151 is operable in addition to the first frequency band. One of the two frequency bands and the third frequency band.

With continued reference to FIG. 1, the two antenna structures 151 and 152 in the electronic device 100 have the same configuration and both have good radiation characteristics. For example, FIG. 5 is a voltage standing wave ratio (VSWR) diagram of an antenna structure in accordance with an embodiment of the present invention, and FIG. 6 is an antenna efficiency diagram of an antenna structure in accordance with an embodiment of the present invention. The curves 510 and 520 in FIG. 5 are used to represent the voltage standing wave ratio of the two antenna structures 151 and 152, respectively, and the curves 610 and 620 in FIG. 6 are used to represent the antenna efficiencies of the two antenna structures 151 and 152, respectively.

In the embodiment of FIG. 5 and FIG. 6, the two antenna structures 151 and 152 can be electrically connected to the same transceiver in the second body 120 through two coaxial cables having a length of 150 mm and 500 mm, respectively. In addition, as shown in FIG. 5 and FIG. 6, both antenna structures 151 and 152 are operable in a first frequency band 530 (eg, 2.4 GHz to 2.5 GHz), a second frequency band 540 (eg, 5.7 GHz to 5.875 GHz), and The triple band 550 (for example, 5.15 GHz to 5.7 GHz). In addition, the voltage standing wave ratio of the two antenna structures 151 and 152 in the first to third frequency bands 530-550 may be less than 3. The antenna efficiency of the two antenna structures 151 and 152 in the first frequency band 530 is -2.4 dB to -3.1 dB, and the antenna efficiency of the two antenna structures 151 and 152 in the second and third frequency bands 540 and 550 is -3.1 dB to -4.8. dB. Furthermore, Fig. 7 is a diagram showing the isolation (S21) of the antenna structure in accordance with an embodiment of the present invention. In the embodiment of FIG. 7, the spacing between the two antenna structures 151 and 152 is 300 mm, and the isolation of the two antenna structures 151 and 152 in the first to third frequency bands 530-550 can be below -40 dB.

In summary, the present invention utilizes a slotted hole of a conductive housing and a feed element to form an antenna structure. Thereby, the configuration space occupied by the antenna structure in the electronic device can be reduced, and the radiation characteristics of the antenna structure can be improved. In addition, the slotted hole is adjacent to a corner of the conductive housing adjacent to the rotating shaft, that is, the slotted hole is disposed on a side above the rotating shaft. Thereby, the influence of the signal busbar of the display panel on the antenna structure can be reduced, thereby further improving the radiation characteristics of the antenna structure. Furthermore, the orthographic projection of the display panel on the conductive housing and the slotted holes may not overlap each other. Thereby, the influence of the display panel on the antenna structure can be reduced, and the radiation characteristics of the antenna structure can be further improved.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧Electronic devices

110‧‧‧First body

111, 121, 122‧‧‧ conductive housing

112‧‧‧ display panel

120‧‧‧Second body

130‧‧‧ shaft

141, 142‧‧‧ slotted holes

151, 152‧‧‧ antenna structure

161, 162‧‧ corner

200‧‧‧Feed components

210‧‧‧Substrate

211‧‧‧ first surface

212‧‧‧ second surface

220~240‧‧‧first to third feeds

250‧‧‧ Grounding Department

251‧‧‧The edge of the grounding

260‧‧‧ Short circuit

270‧‧‧ coaxial cable

FP2‧‧‧Feeding point

D31‧‧‧First coupling spacing

D32‧‧‧Second coupling spacing

310‧‧‧Second path

320‧‧‧ third path

410‧‧‧First path

420, 430‧‧ ‧ the edge of the conductive shell

D41‧‧‧ length

D42~D44‧‧‧Width

D45, D46‧‧‧ distance

510, 520, 610, 620‧‧‧ curves

530‧‧‧First frequency band

540‧‧‧second frequency band

550‧‧‧ third frequency band

1 is a schematic diagram of an electronic device in accordance with an embodiment of the present invention. 2 is a schematic diagram of an antenna structure in accordance with an embodiment of the present invention. 3 is a schematic view showing the projection of the antenna structure of the embodiment of FIG. 2. 4 is a schematic illustration of a slotted aperture in accordance with an embodiment of the present invention. 5 is a voltage standing wave ratio (VSWR) diagram of an antenna structure in accordance with an embodiment of the present invention. 6 is a diagram showing antenna efficiency of an antenna structure in accordance with an embodiment of the present invention. Figure 7 is a diagram showing the isolation (S21) of an antenna structure in accordance with an embodiment of the present invention.

Claims (19)

An antenna structure includes: a conductive housing including a slotted hole; and a feed element comprising: a substrate including an opposite first surface and a second surface, and the second surface faces the conductive a first grounding portion and a shorting portion are respectively electrically connected to the conductive housing, wherein the grounding portion and the orthographic projection of the shorting portion on the conductive housing are respectively located on opposite sides of the slotted hole; The feeding portion is disposed on the first surface and has a feeding point, and the first feeding portion is electrically connected to the conductive housing through the shorting portion; and a second feeding portion is disposed on the first surface And electrically connecting the first feeding portion, the second feeding portion is separated from the ground portion by a first coupling pitch, and the first feeding portion and the second feeding portion are at the orthographic projection position of the conductive housing at the slotting In the hole, the feeding point of the first feeding portion excites the antenna structure, and the first path formed by the antenna structure through the slotted hole operates in a first frequency band and passes through the first feeding portion a second path operation formed by the second feeding portion A second frequency band. The antenna structure of claim 1, wherein the slotted hole is a zigzag slot. The antenna structure of claim 1, wherein the feed point of the first feed portion is electrically connected to an inner conductor of a coaxial cable, and the ground portion is electrically connected to the outer conductor of the coaxial cable. The antenna structure of claim 1, wherein the length of the first path is 1/4 wavelength of the lowest frequency of the first frequency band. The antenna structure of claim 4, wherein the second path extends from the feed point to an open end of the second feed portion, and the length of the second path is the lowest frequency of the second frequency band. 1/4 wavelength. The antenna structure of claim 1, wherein the feeding element further comprises: a third feeding portion disposed on the first surface and electrically connected to the first feeding portion, the third feeding portion and The grounding portion is separated by a second coupling pitch, and the orthographic projection of the third feeding portion in the conductive housing is located in the slotted hole, wherein the third feeding portion excites the antenna structure, and the antenna structure transmits the antenna structure A third path formed by a feed portion and the third feed portion operates in a third frequency band. The antenna structure of claim 6, wherein the third path extends from the feed point to an open end of the third feed portion, and the length of the third path is the lowest frequency of the third frequency band. 1/4 wavelength. The antenna structure of claim 6, wherein the first feeding portion, the second feeding portion and the third feeding portion are between the ground portion and the shorting portion, and the third feeding portion, The first feeding portion and the second feeding portion are sequentially arranged along an edge of the ground portion. The antenna structure of claim 6, wherein a center frequency of the second frequency band is greater than a center frequency of the third frequency band, and the first coupling pitch is smaller than the second coupling pitch. An electronic device includes: a rotating shaft; a first body and a second body that are relatively rotated through the rotating shaft, wherein a conductive housing in the first body includes a slotted hole and a corner adjacent to the rotating shaft, And the slotted hole is adjacent to the corner; and a feeding component forms an antenna structure with the slotted hole, and includes: a substrate, including a first surface and a second surface, and the second surface The conductive housing; a grounding portion and a shorting portion are electrically connected to the conductive housing, respectively, the grounding portion and the orthographic projection of the shorting portion on the conductive housing are respectively located on opposite sides of the slotted hole; a first feeding portion is disposed on the first surface and has a feeding point, and the first feeding portion is electrically connected to the conductive housing through the shorting portion; and a second feeding portion is disposed at the first portion a first surface is electrically connected to the first feeding portion, the second feeding portion is spaced apart from the ground portion by a first coupling pitch, and the first feeding portion and the second feeding portion are at an orthographic projection position of the conductive housing The slotted hole, wherein the first feed portion The feed point excites the antenna structure, and the first path formed by the antenna structure through the slotted hole is operated in a first frequency band, and is formed by the first feed portion and the second feed portion. Two path operation in one Second frequency band. The electronic device of claim 10, wherein the first body further comprises a display panel, and the orthographic projection of the display panel at the conductive housing and the slotted hole do not overlap each other. The electronic device of claim 10, wherein the slotted hole is a zigzag slot. The electronic device of claim 10, wherein the feed point of the first feed portion is electrically connected to an inner conductor of a coaxial cable, and the ground portion is electrically connected to the outer conductor of the coaxial cable. The electronic device of claim 10, wherein the length of the first path is 1/4 wavelength of the lowest frequency of the first frequency band. The electronic device of claim 14, wherein the second path extends from the feed point to an open end of the second feed portion, and the length of the second path is the lowest frequency of the second frequency band. 1/4 wavelength. The electronic device of claim 10, wherein the feeding component further comprises: a third feeding portion disposed on the first surface and electrically connected to the first feeding portion, the third feeding portion and The grounding portion is separated by a second coupling pitch, and the orthographic projection of the third feeding portion in the conductive housing is located in the slotted hole, wherein the third feeding portion excites the antenna structure, and the antenna structure transmits the antenna structure A third path formed by a feed portion and the third feed portion operates in a third frequency band. The electronic device of claim 16, wherein the third path extends from the feed point to an open end of the third feed portion, and the length of the third path is the lowest frequency of the third frequency band. 1/4 wavelength. The electronic device of claim 16, wherein the first feeding portion, the second feeding portion and the third feeding portion are between the ground portion and the shorting portion, and the third feeding portion, The first feeding portion and the second feeding portion are sequentially arranged along an edge of the ground portion. The electronic device of claim 16, wherein a center frequency of the second frequency band is greater than a center frequency of the third frequency band, and the first coupling pitch is smaller than the second coupling pitch.